• # question_answer Subtracting 40% of a number from the number, we get the result as 30. The number is? A) 28                                B) 50C) 52                                D) 70

Solution :

Let the number is x, then? $x-\frac{40x}{100}=30$ $\Rightarrow$   $60x=3000$             $\therefore$      $x=\frac{3000}{60}$ $=50$

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